Who am I? 
One of my memory sticks seems to have gone **** up on me so I'm currently running on 1Gig of ocz pc2 9200. I realise Ill need to buy a matched pair to replace it, question is what with? I have a P5N32-e sli plus motherboard, running slightly O/C'd,.
Also, what is better? One stick of 2Gig memory or 2x 1Gig in two slots? Is dual channel going to be better than just using the same amount of memory in one slot?

One of my memory sticks seems to have gone **** up on me so I'm currently running on 1Gig of ocz pc2 9200. I realise Ill need to buy a matched pair to replace it, question is what with? I have a P5N32-e sli plus motherboard, running slightly O/C'd,.
Also, what is better? One stick of 2Gig memory or 2x 1Gig in two slots? Is dual channel going to be better than just using the same amount of memory in one slot?